소켓 데몬 너무 디버깅하기 싫어서 만든 별것 아닌 것

socat.c

#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <strings.h>
#include <stdio.h>
#include <unistd.h>

int main(int argc, char **argv, char **envp) {
	char buf[256];
	int sockfd = socket(2, 1, 0);
	struct sockaddr_in addr;
	int size = sizeof(addr);
	int pid;
	bzero(&addr, size);
	addr.sin_port = htons(atoi(argv[1]));
	addr.sin_addr.s_addr = INADDR_ANY;
	addr.sin_family = 2;
	
	bind(sockfd, (struct sockaddr *)&addr, size);
	listen(sockfd, 0);
	while(1) {
		int fd = accept(sockfd, (struct sockaddr *)&addr, &size);
		if((pid = fork()) == 0) {
			printf("my pid: %d\n", getpid());
			dup2(fd, 0);
			dup2(fd, 1);
			dup2(fd, 2);
			execve(argv[2], &argv[2], envp);
		} else {
			close(fd);
			sprintf(buf, "%d", pid);
			execl("/usr/bin/gdb", "gdb", "-p", buf, NULL);
		}
	}
}

방명록남기고갑니다